采用固相微萃取(SPME)技术结合气相色谱-质谱(GC/MS)法对石化工业废水中的痕量有机物进行检测和分析.针对废水中存在的几种主要有机物,对影响SPME的参数进行了优化.建立的方法在所测的范围内具有良好的线性(相关系数:0.98~1.00),检测限达0.3~29.1 μg/L,重复测定的相对标准偏差小于7%,回收率为78.6%~125.1%.采用该方法对某石化工业废水样品中主要存在的25种痕量有机物进行测定,结果表明这是一种简便、准确的分析方法,所测得的结果可为废水的治理提供科学依据.
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